js心形特效

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>心形特效</title>
<style>
  .heart {
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: red;
    transform: rotate(45deg);
    animation: fall linear infinite;
  }
  .heart::before,
  .heart::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: red;
    border-radius: 50%;
  }
  .heart::before {
    top: -10px;
    left: 0;
  }
  .heart::after {
    left: -10px;
    top: 0;
  }
  @keyframes fall {
    from { top: -20px; }
    to { top: 100%; }
  }
</style>
</head>
<body>
<script>
function createHeart() {
  const heart = document.createElement('div');
  heart.className = 'heart';
  heart.style.left = `${Math.random() * 100}vw`;
  document.body.appendChild(heart);
  setTimeout(() => heart.remove(), 5000); // 5秒后移除心形元素
}
setInterval(createHeart, 1000); // 每秒生成一个新的心形
</script>
</body>
</html>